The green-throated carib (Eulampis holosericeus) is a species of hummingbird in the genus Eulampis, which contains one other species. It has two subspecies, holosericeus and chlorolaemus, the former occurring in Puerto Rico and the latter in Grenada.

The green-throated carib is a large hummingbird. Adult females have some feathers orange to light green below the peak, while adult males have light green in greater proportion. Also the tail in adult females is dark red-brown with tips ending in white, the tail of the male is dark blue. Both females and males have an intense blue band on the chest, belly of both are dark green-blue. The back of both is green with golden tones.